Registration of ‘DALZ 1308’ zoysiagrass

Abstract

‘DALZ 1308’ (Reg. no. CV‐285, PI 691612) is a first‐generation interspecific hybrid developed in 2004 by crossing a genotype of Zoysia minima (Colenso) Zotov and Z. matrella (L.) Merr. ‘Diamond.’ After field evaluations in Dallas, TX (2004–2009) and Gainesville, FL (2006–2008), DALZ 1308 was selected for advancement to the 2013 Warm‐season Putting Greens National Turfgrass Evaluation Program (NTEP). DALZ 1308 was evaluated at 10 NTEP locations (2013–2018) as well as in Dallas, TX (2014–2017) and Gainesville, FL (2013–2017). DALZ 1308 exhibited a diminutive growth habit with narrower and shorter leaf blades and dwarf canopy height as compared to Diamond and L1F; shorter internode length, smaller node, and smaller internode diameter as compared to L1F; superior ball roll as compared to Diamond and L1F in Arizona, Kentucky, and Texas; resistance to tawny mole crickets; and reduced seedhead incidence and density during the growing season. As compared to Diamond and L1F, DALZ 1308 has shown to have reduced winter injury with fabric cover in Bloomington, IN. Although characteristics varied by location, DALZ 1308 exhibits good turfgrass quality, high shoot density, medium‐green genetic color, and extended fall and winter color retention. Initial greenhouse experimentation under moderate shade shows that DALZ 1308 has a greater percent green cover as compared to ‘Palisades’, Diamond, and ‘Zorro’. Overall, DALZ 1308 is an ultradwarf zoysiagrass suitable for golf course putting greens in a wide range of environments across the United States.

Low‐input golf course putting green performance of fine‐textured inter‐ and intra‐specific zoysiagrass (Zoysia spp.)

“…Genotypes with ball roll of greater than or equal to Diamond included Z. minima derivatives. Among these, the top statistical performers included TAES 5567‐27, TAES 5458‐10 (DALZ 1308 tested in 2013 NTEP; Chandra et al., 2020) and 5458‐12 (DALZ 1309 tested in 2013 NTEP) where ball roll distance was significantly ( P < .0001) greater than Diamond and L1F under low input management. Morris (2017) also reported Z. minima hybrids DALZ 1306 through 1309 having similar or greater ball roll distance than Diamond and L1F.…”

“…During the 2013 NTEP trials, spring density ratings were also lower than summer ratings and higher than observed in this study. Furthermore, Z. minima x Z. matrella derivatives, TAES 5458-10 ('DALZ 1308′; Chandra et al, 2020) and 5458-12 (DALZ 1309), were either greater than or equal to Diamond in the 2013 NTEP, suggesting that under standard putting greens management conditions, some of these a Pedigree numbers were assigned based on female and male parental genotypes; Pedigrees 1 through 5 consist of commonly used zoysia species (Z. matrella and Z. japonica)…”

“…• Genetic variability exists in the performance of fine-textured putting greens zoysiagrass • Under-utilized species of zoysia can be used as parental lines to develop putting green zoysias • Performance of putting green zoysias under low management conditions can vary significantly be found upwards of 600 m in altitude and has successfully been used to generate hybrids with other species (Chandra et al, 2020;Takahashi et al, 2006). Zoysia pauciflora has wide (Schwartz et al, 2010) and long leaves, is cold-sensitive, and can be found nestled under tree canopies (New Zealand Plant Conservation Network, 2019).…”

“…Zoysia minima and Z. pauciflora are native to New Zealand (Loch et al., 2017) and often found in areas with high saltwater content (New Zealand Plant Conservation Network, 2019). Zoysia minima has more of a diminutive growth habit and can be found upwards of 600 m in altitude and has successfully been used to generate hybrids with other species (Chandra et al., 2020; Takahashi et al., 2006). Zoysia pauciflora has wide (Schwartz et al., 2010) and long leaves, is cold‐sensitive, and can be found nestled under tree canopies (New Zealand Plant Conservation Network, 2019).…”

Nitrogen rate and cultivar effects on zoysiagrass putting greens in the transition zone

“…Additionally, 'M85' (Z. matrella; 2015) was selected for producing less seedheads than Diamond, and 'Prizm' (Z. matrella; 2017) was identified based on its fine leaf texture and dark green color (Doguet et al, 2016(Doguet et al, , 2017. 'Lazer' (Z. matrella × Z. minima) was released from Texas A&M University in 2020 and was characterized by its dwarf canopy height and increased tolerance to environmental stresses compared with other zoysiagrasses including the intraspecific hybrid's male parent, Diamond (Chandra et al, 2020).…”